html, body{
  width: 100%;
  height: 100%;
  margin: 0px;
  padding: 0px;
}
.fail i{
  margin-top: 100px;
  font-size: 100px;
}
.fail{
  text-align: center;
  color: red;
}
.fail p{
  font-size: 18px;
  font-weight: bolder;
}
.success i{
  margin-top: 100px;
  font-size: 100px;
}
.success{
  text-align: center;
  color: green;
}
.success p{
  font-size: 18px;
  font-weight: bolder;
}
#article{
  width: 100%;
  height: 100%;
  overflow-y: auto;
}
